Gaia DR2 4232108426695238272
All names: NLTT 49664, SDSS J204019.98+024343.6, Gaia EDR3 4232108426695238272, WDJ204019.97+024344.53, WDJ204019.97+024344.52, LP 635-38, LSPM J2040+0243, Gaia DR3 4232108426695238272, USNO-B1.0 0927-00721689, Gaia DR2 4232108426695238272
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 20 40 20.01 (0.1) | 20 40 20.01 | 20 40 20.01 | 20 40 19.97 (0.1) | 20 40 20.01 | |||||
| Declination | 02 43 41.52 (0.08) | 02 43 41.61 | 02 43 41.52 | 02 43 44.53 (0.08) | 02 43 41.61 | |||||
| Spectral type | DZ | D | ||||||||
| Effective temperature | [K] | 7257.0 | 6995.0 | 6480.0 (95) | ||||||
| log(g) | [cgs] | 8.44 | 8.35 | 8.22 (0.03) | ||||||
| Mass | [M☉] | 0.875 | 0.798 | 0.714 (0.02) | ||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 3.2770 | 3.1340 | |||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 14.73 (0.1) | 14.68 (0.2) | 14.73 | 14.73 (0.1) | 14.68 (0.2) | ||||
| Distance | [pc] | 67.91 (0.7) | 68.12 (0.9) | 67.91 | 67.91 (0.7) | 68.12 (0.9) | ||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 42.28500616 (0.2) | 42.69653606 (0.3) | 42.285 (0.2) | 42.69653606 | |||||
| Proper motion (declination) | [mas/yr] | -188.0997371 (0.1) | -188.005125 (0.2) | -188.1 (0.1) | -188.005125 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 19.10 | |||||||||
| V magnitude | ||||||||||
| R magnitude | 18.50 | |||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 19.10 (0.03) | 19.10 (0.03) | ||||||||
| g magnitude | 18.33 (0.007) | 18.33 (0.007) | ||||||||
| r magnitude | 18.12 (0.007) | 18.12 (0.007) | ||||||||
| i magnitude | 18.08 (0.009) | 18.08 (0.009) | ||||||||
| z magnitude | 18.21 (0.03) | 18.21 (0.03) | ||||||||
| G magnitude | 18.12 (0.02) | 18.14 | 18.12 | 18.12 (0.003) | 18.14 | |||||
| BP magnitude | 18.33 (0.02) | 18.34 | 18.34 | |||||||
| RP magnitude | 17.78 (0.02) | 17.81 | 17.81 | |||||||
| Pan g magnitude | 18.31 (0.005) | |||||||||
| Pan r magnitude | 18.13 (0.005) | |||||||||
| Pan i magnitude | 18.13 (0.004) | |||||||||
| Pan z magnitude | 18.21 (0.005) | |||||||||
| Pan y magnitude | 18.27 (0.03) | |||||||||
| E(B-V) | 0.004 | |||||||||
* Constant surface field
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